Machine for welding metal tubes, rings, and the like.



P. JOTTRAND, DEGD.

J. 1;. 101mm, wxnow AND GUARDIAN, & A. murmur, ASSOCIATE GUARDIAN or THE HEIRS-AT-LAW. MACHINE FOB WELDING METAL TUBES, RINGS, AND THE LIKE.

- APPLIUATION FILED AUG. 10, 1905. Patented Oct. 6, 1908. 1 j 11 v V 3 SHEETS-SHEET 1.

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FELIX um?- T'RA 5 F. JOTTRAND, DEG'D.

J. n. JOTTR-AND, W-IDO'W AND GUARDIAN, u. JO'ITRAND, ASSOCIATE GUARDIAN 01 THE HEIES-AT-LAW. MAGHINE FOR WELDING METAL TUBES, RINGS, AND THE LIKE. APPLIOATION rILDD we. 10, 1905.

900,381. I Patented Oct. 6, 1908.

3 SHEETS-SHEET 2.

WAN MW I I F. JOTTRAND, DBGD. .n n. Jomnmn, wmow AHD GUARDIAN, & A. JOTTRAND, ASSOCIATE GUARDIAN or THE HBIBS-AT-LAW.

MACHINE FOR WELDING METAL TUBES, RINGS, AND THE LIKE.

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' *FTQEG FELIX JOTTRAND, or UGCLE, NEAR BRUSSELS; BELGIUM; JULIA RENARD JOTTRAND,-WIDOW or sun FELIX JOTTRAND, DEOEASED,-FOR I-IERSELF AND As GUARDIAN, AND AUGUSTE JOTTRAND, AS ASSOCIATE-GUARDIAN -OF THE HEIRS-AT-LAW, ASSIGNORS TO sooIETE ANONYME LOXHYDBIQUE INTERNATIONALE; A CORPORATION OFBELGIUM. I

MACHINE Fon-wnLDmeMn'raL runes, RINGS, AND 'rw gineer, a subject of Belgium, residing at;

Uccle, near Brussel-s,in the Kingdom of Belgium, have invented new and useful Im-f prov-ements in Machines for WeldingMetal following is a specification t- This invention relates to ain'a chine for Welding metal tubes rings or other tubular pieces of Workalong a longitudinal genfl ei-ator. I 5 The object of the IIIVGIIUOIIJS to prov de a machine of simplefand practical construc-- tion in whichthe heatingof the work to be treatedcan be simultaneously'effected from both the inside and outside and in which the A welded part can besubmitted to a hand ham- 1 mering operation after the welding of a certain length, a block or equivalent being introduced at this time into the interior of the work to serve as a supporting surface or anvil during said hammering.

in certain combinations and arrangements of parts, as will be hereinafter described In detail and specifically pointed out in the" elevation thereof. Fig.3 is a separate View on a larger scale ofthe slide or carriage car- A rying the blow pipe by which the work 1s heated interiorly and of'the mechanism for regulating the forward and backward moveregard to the bracket 22. By these means ments of said carriage. Fig. 4is a cross section ofFig. 3, and Fig. dis a detail view the carriage controlling lever. t Reference being made to Figs. 1 and 2' the machine comprises columns 1 screw threaded for part of their length and on which longi- Specification of Letters Patent. Application filed August 1o, 1eo5. Serial at. 273,518.

Patented Oct; 6, 1908.

" cross bars l5 serve as a support for a beam 7 on which travels a carriage 8 carrying a blow-pipe nozzle 9 for heating the interior'of thework. Thisblow pipe is fed with gas in any suitable way by flexible pipes not shown in'the drawing. Tubes, Rings, and the Likepof which the p v perends bycross heads 10 which support a beam 11 on whicha carriage 12 is adapted The columns 1 are connected at their upto be displaced for instance by hand said carriage'carrying a blow pipe 13 adapted to heat the exterior of the work A. The said blow-pipe 13 is also fed with gas through suitable flexible pipes (not shown). As

shown'more particularly in Figs. 3 and 4, the carriage 8 is carried by four slightly placed longitudinally on the beam 7 by vmeans of a rod 16 adapted to rotate in the v, I I carriage m a suitable bearing 1 7. The said The Invention consists more particularly rodlfi terminates in the axis of the carriage n a gear Wheel 18 adapted to directly actuate a toothedbar 19 integral with a support 20 carrying a hammering block or anvil 21.

The toothed bar 19 slides in a groove in a bracket 22 integral with the carriage. The gear wheel 18 also meshes with a pinion 23 mounted on a shaftrotating in suitable bearings carried by the carriage. This pinion gears in turn with a toothed bar 24 also integral with the-aforesaid support and arranged symmetrically with" regard to the bar 19. The toothedbar 24 slides in a groove in a bracket 25 arrangedsymmetrically with traction exerted on the rod 16 will move the carriageS longitudinally on the beam 7, and rotationbf said rod 16 will raise or lower the block or'anvil 21 by means of the pinion 18' directlyoperating the toothed bar 19 and indirectly the toothed bar 24 by means of the pinion 23'. I I p vTo the carriage 8 is attached by means of a bolt y orotherwisea support or bracket 00 carrying an upwardly directed lug 26 (Figs. 3 and 4E), .onwhich is pivoted a block or trunnion 27 carrying a socket 28 for the tube 29 of the'bloW-pipe. This block, trun- Fig. 3), there being a stop 34 in the path of a lug 35 on the trunnion or gudgeon 27, to determine such position.

' The operating rod 16 passes through an adjustable support 35 mounted on the beam 7 at one end of the machine and also through a fixed bracket 36 having a horizontal angular extension or branch 37 The bracket 36, 37 carries a sleeve 38 surrounding the rod 16 and under the action of a spring 39. The position of this sleeve and the degree of compression of the spring 39- "can be adjusted by means of a nut 40 engaging. the screw threaded end 41 of the sleeve 38. The rod 16 is provided with a longitudinal groove 42 into which engages a key 43 located in a collar 44 forming part of a lever 45 (Fig. 5) for operating the rod 16. The key 43 can be engaged in orv released from the groove 42 by about a quarter turn of a handle or lever 46.

The movement of the collar 44 between the support 35 and the end of the horizontal branch 37 of the bracket 36, 37 is normally equal to the distance which separates the axis of the nozzle 9 of the blow pipe 29 from the axis of the block 21, and the position of the sleeve 38 is adjusted according to the duration of the heating.

The action of the machine described is as follows: The work A is placed on the supports 4 with the seam to be treated directed upwards in the axial and longitudinal plane of the machine. The beam 7 must, of course, initially be passed through the pipe to be welded. This is done as follows: The pipe is first placed on the brackets 4, the

- .,beam 7 being removed from the machine al- "together together with the carriage 8. The

said beam is then introduced into the pipe through one extremity of the latter and placed on the cross bars 5, the height of which has previously been adjusted by means of the hand-wheels 6 so as to be above the lower edge of the pipe. The carriage 8 is then placed on the beam 7 and connected to the rod 16 outside the pipe. The position of the carriage 8 is then adjusted in such a manner that the blow pipe 9 is caused to heat the work from the interior and similarly the position of the upper blow pipe 13 is adjusted to heat the work at a point exactly opposite that heated by the blow pipe 9. When the moved in a longitudinal direction 'until' the collar 44 of the lever 45 makes contact with the end 37 of the bracket 36, 37 which movementalso forces back the sleeve 38 against the action of the spring 39. The attendant then partially rotates the rod 16 by means of the lever 45 which has the effect, on one hand, of lowering the abutment 31 on the lever 30, and causing the blow-pipe 29 to be removed from the block 21, and, on the other hand, of raising said block by means of the pinions 18 and 23 and toothed bars 19 and 24. The block being raised, the hammering can be effected by means of a hand operated hammer or in any other suitable manner to render the welded surface uniform. After the hammering operation the carriage must be returned to guide the blow pipe 9 back to the exact point to be heated, but before doing so the attendant manipulates the handle 46 to give same about a quarter turn which disengages the collar 44 from the rod 16. By this means the sleeve 38, under the action of the spring 39 forces back the collar 44 for the distance by which said sleeve 38 has been previously moved after which the attendant again causes the collar 44 to engage the rod 16 by a reverse movement of the handle 46, and then operates the lever 45 to rotate the rod 16 in the reverse direction and thus release the blow pipe 29, which again resumes its original position, whereupon the block 21 is lowered. The lever 45 is then forced back until the collar 44 again contacts with the bracket 35, by which movement the carriage is returned but since the rearward movement of the lever 45 and collar 44 is less than the forward movement previously effected, the blow pipe assumes the desired position under another portion of the tube. For this purpose it is suflicient that the position of the sleeve 38 with regard to the abutment formed by the bracket 36, 37 should be suitably adjusted according to the duration of the heating. It will be easily understood that under these conditions, the forward movement of the carriage is equal, at each operation to the travel of the collar 44 between the bracket 35 and abutment 37, whereas the rearward movement is equal to the travel of said collar 44 between the end of the sleeve 38 and the bracket 35, when the spring 39 projects said sleeve 38 for a certain istance relatively to said abutment 37 or to the nut 40 on the branch 36.

It will be-evident from the above descriptionthat in the present machine the block 21 will only be slightly affected by the action of the blow pipe the latter being removed from said block during the whole of the hammering operations.

What I claim as my inventlon and desire to secure byLetters Patent of the United- States is I v 1. In a machine of the class descmbed, an

anvil a su ort for said anvil means for elevating sald anvil from its support, and a heater also carried by the same support.

2. In a machine of the class descr1bed,"an anvil, a support therefor, means for elevating said anvilfrom its support, a heater also carried by said support, and means for displacing said heater through the movement anvil, a support therefor, a heater also car:

ried by said support, and a single means for elevating said anvil and displacing said heater with respect to said support.

5. In a machine of the class described, an anvil, a longitudinally movable carriage supporting the same, a heater also supported on said carriage, and means for displacing said heater laterally with respect to said anvil.

6. In a machine of the class described, an

anvil, a carriage supporting the same,means for elevating said flanvil on said carriage, and a heater also supported by said carriage.

7 In a machlne of the class described, an

. anvil, a carriage supporting the same, means for elevating said anvil on said carriage, a heater also supported by said carriage, and

'means for displacing said heater laterally with respect to said anvil. Y

8. In a machine of the class described, an anvil, a carriage su porting the same, a heateralso supported y said carriage, and a single means connected to elevate .said anvil and displace said heater simultaneously.

9. In a machine of the class described, a beam adapted to be positioned within a pipe, a carriage guided by said beam, an anvil on said carriage, a rod extending from said carriage in the longitudinal direction of said beam, means operated by the angular movement of said rod for elevating said anvil,

and a heater supported by said carriage.

10. In a machine of'the class descrlbed, a

beam adapted to be positioned within a pipe, a carriage guided by said beam, an anvil on said carriage, a rod extending from said carriage in. the longitudinal direction of said beam, means actuated by an angular movement of said rod for elevating said anvil, a heater supported by said carriage, and means for displacing said heater through the movement of said anvil.

11. In a machine of the class described, a beam adapted to be positioned within a pipe, a carriage guided by said beam, an anvil on said carriage, a rod extendin from said carriage in the longitudinal direction of said beam, means actuated by an angular movement of said rod for elevating said anvil, a heater supported by said carriage, a lever fixed to said heater, and means connected to said rod and displaced by the movement thereof for engaging said lever to displace the heater.

12. In a machine of the class described, a carria e, an anvil having dependent racks, a pair 0 gears meshing wlth one another and with said racks, and a rod extending from one of said gears away from said carriage,

as and for the purpose set forth.

13. In a machine of the class described, a carria e, an anvil thereon, a rod extending away rom said carriage by which the latter is moved longitudinally, and means operated by the angular movement of said rod for elevating said anvil.

14. In a machine ofthe class described, a carriage, an anvil supported thereby, a rod attached to said carriage by which said carriage is longitudinally moved, means connected to said rod for elevating said anvil when the rod is'turned, a heater supported by said carriage, and, means for displacin the heater through the elevation of the anvi 15. The combination with means for supporting a tubular piece. of work to be welded, of a bar adapted to be inserted into said work, a carriage adapted to be displaced on said bar, a heater supported by said carriage and adapted to internally heat the work, a block supported by said carriage.

In testimony whereof I have signed my name to this specification in the presence of two. subscribing witnesses.

FELIX J OTTRAND.

I Witnesses:

MAURICE GERBEAULT, GREGORY PHELAN. I 

